The segments

Segment I: Himalayan: From source to Tajewala; 172 km

Segment II: Upper: From Tajewala to Wazirabad; 224 km

Segment III: Delhi: Wazirabad barrage to Okhla barrage; 22 km

Segment IV: Eutrophicated (Eutrophication is the result of astronomical BOD and other micropollutant levels): Okhla barrage to Chambal confluence; 490 km

Segment V: Diluted: Chambal confluence to Allahabad; 468 km